DOI: 10.1016/j.jcou.2017.08.007
Scopus记录号: 2-s2.0-85028456006
论文题名: Structured emulsion-templated porous copolymer based on photopolymerization for carbon capture
作者: Nikjoo D. ; Akhtar F.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2017
卷: 21 起始页码: 473
结束页码: 479
语种: 英语
英文关键词: Absorption
; Adsorption
; Carbon capture
; Photopolymerization
; Porous polymer
Scopus关键词: Absorption
; Adsorption
; Carbon capture
; Carbon dioxide
; Emulsification
; Granulation
; Photopolymerization
; Water absorption
; Absorption mechanisms
; CO2 adsorption
; Gravimetric methods
; High internal phase emulsions
; N2 adsorption
; Porous hydrogels
; Porous polymers
; Presence of water
; Hydrogels
英文摘要: Porous hydrogel copolymers of acrylamide (AAM) and acrylic acid (AAC) were structured in the form of monoliths and granules. AAM-co-AAC porous copolymer monoliths were synthesized using high internal phase emulsion (HIPE) as template and photopolymerization. For granulation, photopolymerization was used for the fabrication of the AAM-co-AAC hydrogel, which was subsequently freeze-granulated. The structural analysis (FTIR and XRD) confirmed the successful synthesis of hydrogel copolymers. The CO2 uptake capacity of structured AAM-co-AAC copolymers was evaluated through adsorption and absorption mechanisms by volumetric and gravimetric methods, respectively. The granules exhibited the CO2 adsorption uptake of 0.8 mmol g-1 at 25 kPa and 298 K. The CO2 and N2 adsorption data demonstrated that the hydrogel copolymers were selective for CO2. Furthermore, the granules were capable of capturing CO2 in the presence of water. The results of absorption of CO2 on water-swollen granules demonstrated that CO2-uptake capacity increases with increasing water content up to 1.8 mmol g-1. © 2017 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52638
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Nikjoo D.,Akhtar F.. Structured emulsion-templated porous copolymer based on photopolymerization for carbon capture[J]. Journal of CO2 Utilization,2017-01-01,21